Strainer system.



S. ELLIOTT. STRAINER SYSTEM. APPLIOATION FILED JUNE 27, 1910.

Patented Aug. 19, 1913.

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W. S. ELLIOTT.

STEAINBR SYSTEM. APPLICATION FILED JUNE 27, 1910.

1,070,788. Patented Aug. 19, 1913.

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UTTEI) STATES PAT.

FIQ

STRAINER SYSTEM.

T 0 all whom it may concern Be it known that I, WVILLIAM S. ELLIOTT, a resident of Pittsburgh, Allegheny county, and State of Pennsylvania, have invented a new and useful Strainer System, of which the following is a full, clear, and exact de scription, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to strainer apparatus and more particularly to the strainers for intake pipes submerged in lakes or other bodies of water.

The object of the invention is to provide a strainer apparatus of this character of sim ple and inexpensive construction, and 1n which the strainer proper may be easily raised and lowered for cleaning, repairs, etc.

The invention also provides for closing OK the pipe by a valve, when the strainer is removed.

The invention resides particularly in the operating system for the strainer and valve, whereby the inlet may be closed while the strainer is raised for cleaning.

In the accompanying drawings Figure 1 is a side elevation of strainer apparatus embodying my invention. Fig. 2 is a front elevation of the same. Fig. 3 is a horizontal sectional View on the line IIIIII of Fig. 2. Fig. 4 is a detail view of the modified form. Fig. 5 is a sectional plan view showing another modification.

In the drawing, 2 represents the elbow portion of an intake pipe 3, this elbow terminating in a double guide portion 4, one part of which guide receives the valve 5, having a rotatable stem 6 extending to above the surface, with its upper portion screw threaded and provided with a hand wheel 7. The screw threaded portion extends through a suitable nut 6 in the support 8 so by turning the hand wheel 7 the valve may be shut off from the inlet flow to the intake pipe or may be raised to allow the flow.

To the sides of the valve casing are secured horizontal brackets 99, the outer ends of which receive vertical guide rods 10 extending up above the surface and secured to the support 8 or any other part of the supporting frame work. The strainer 11 preferably consists of a perforated basket having lJ-shaped side guides 11 secured to it which slide over the guide rods 10 and Specification of Letters Patent.

Application filed June 27, 1910.

Patented Au 19,1913.

Serial No. 569,083.

having inner end guides 11 filling the recesses outside the valve guide recesses in the intake elbow, as shown in Fig. 3. The basket is provided with a chain 12 from which a chain 13 leads upwardly to and over a chain sheave 14 on a winding shaft 15. The other end of the chain is preferably provided with a counterweight 16, and the shaft may be provided with a suitable operating handle 17, and a ratchet wheel 18 engaged by a hand controlled pawl 19. The shaft 15 is mounted in hearings on the supports 8 which form part of a framework. This framework may be of any suitable character, and sets into the water with its upper portion projecting above the surface.

In the use of the device, the valve is lifted within its guides to open the intake elbow and the basket rests in its lowermost posi tion, thus straining the water enterin the vpipe. When it is desired to lift the basket for repairs, cleaning etc., the shaft is actuated to move the valve downwardly within its guides until the entrance of the pipe is shutoff. The shaft is then actuated to wind up the lifting chain and thus raise the has ket along its guides until it is above water, where it can be repaired, cleaned, etc. The basket may then be lowered on its guides to its original position and the valve then lifted, when the parts are again ready for operation.

Instead of a single intake pipe a crib may be provided with a series of downwardly projecting inlet pipes, as shown in plan view of Fig. 4, and in this case each of these pipes would be provided with my valve and strainer system as shown in the first figures, the valve and strainer system being preferably independently operable for each inlet pipe to the crib. In this figure 20 are the inlet pipes'to the crib 21 from which the outflow pipe 22 leads.

The mouth of the inlet pipe may project in any desired direction and a single pipe may be provided with a pair or more of the strainer and valve connections, as shown in Fig. 5, in which 23 is the inlet pipe and 24 the strainers, each mounted as in Figs. 1, 2 and 3, and separably operable so that either branch of the inlet may be closed and its strainer raised to the surface.

The advantages of my. invention result from the simplicity and ease of the operation of the device. The valve guides extend only a sutlicient distance above the pipe to insure proper guiding in lifting to open the inflowing end; while the basket guides eX- tend above the surface of the water. basket is easily and quickly raised and lowered and is accurately guided to its proper position when lowered.

Many changes may be made in the form and arrangement of the intake pipe, the

number of infiowing nozzles, etc., without departing from my invention.

I claim:

1.. In strainer apparatus for water sys toms, a submerged intake nozzle, a submerged valve for opening and closing said nozzle, a strainer element, and separate actuating means extending downwardly into the water for the valve and strainer ele ment whereby the valve may be opened or closed and the strainer element may be lowered from the surface into operative relation to the said nozzle and again raised to the suriace at will; substantially as described.

2. In strainer apparatus for water systems, a submerged intake nozzle, a submerged valve for controlling said nozzle, a strainer element for said nozzle, and actuating means for said valve and element and extending upwardly therefrom above the surface of the water, together with guides The i for the said valve and element; substantially as described.

3. In strainer apparatus for water systems, a submerged intake nozzle having a valve seat and a strainer seat, a valve 1ne1nher, a strainer element, and actuating means for said member and element extending up wardly above the surface of the water, together with upwardly extending fixed guides for said member and element; substantially as described.

t. In strainer apparatus for water systems, a submerged intake nozzle, a submerged valve for opening and closing the nozzle, a strainer element for the nozzle, a supporting structure above the water, valve actuating means carried on said structure and extending downwardly into the water to said valve, guiding means for the strainer element extending downwardly from said structure, and actuating means whereby the said element may be raised and lowered on the guiding means; substantially as described.

In testimony whereof, I have hereunto set my hand.

lVlLLIAh I S. ELLIOTT.

lVitnesses Gno. H. PARMELEE, H. lit. Conwm.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, 3). C. 

